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Cisco Integrated Services Router Hardware Installation Guide
Chapter 1 Product Overview
Cisco 810 Series
Table 1-10 describes the 4G LTE LEDs for the Cisco 819 ISR.
Table 1-9 WLAN LED Descriptions
WLAN LED Color Description
Boot loader status
sequence
Blinking Green Board initialization in progress.
Initializing FLASH file system.
Initializing Ethernet.
Ethernet is OK.
Starting Cisco IOS.
Initialization is successful.
Association status Green Normal operating condition with no
wireless client associated.
Blue Normal operating condition with at least
one wireless client associated.
Operating status Blinking Blue Software upgrade in progress.
Rapidly cycling through
Blue, Green, Red, and
White
Access point location command invoked.
Blinking Red Ethernet link is not operational.
Boot loader errors Blinking Red and Blue FLASH file system failure.
Blinking Red and Off Environment variable failure.
Bad MAC address.
Ethernet failure during the image recovery.
Boot environment failure.
No Cisco image file.
Boot failure.
Cisco IOS errors Red Software failure. Try to disconnect and
reconnect the unit power.
Table 1-10 4G LTE LED Descriptions
LED Color Description
SYS Yellow FPGA download is complete.
Green (blinking) ROMMON is operational.
Green (solid) IOS is operational.
Green (four blinks
during bootup)
Reset button has been pushed during the bootup.
Off After powering up, when FPGA is being downloaded (in
ROMMON).
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